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Old 14 August 2010, 17:42   #11
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so have you removed the foam?
i hear if you do, you must replace it?

i just presumed the water that comes out is what splashes into the boat as you go along, the boat has no cuddy, and it does get wet as we use it for diving.
there must be small holes from the deck that it goes through??
No sorry I don't have a dory (although I have had the pleasure of their acquaintance in the past!). The point I was trying to make was the void under the hull should (and can actually be) properly sealed, if it is full of foam and you get a pint out the drain you've probably soaked up 3 or 4 times that too.

There SHOULDN'T be holes that go through the deck and let water through - and holes through the deck should be properly sealed with Sikaflex. My experience is that water gets into the hull void in two ways (1) damage to the hull e.g. from someone driving it up a rocky beach or hitting a jetty (2) through the seal between the deck and the hull - once this starts to let water in you are looking at a major repair.

You might be able to trace the leak by connecting an air pump to the bung hole and going carefullly over every possibility with soapy water until you find where it is bubbling.
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Old 14 August 2010, 18:06   #12
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Thanks I will try that this autumn when I am done diving for the year
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Old 15 August 2010, 00:55   #13
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i've got no foam in my bilge and never had any strength issues!
the best thing you can do is cut your floor out to remove all the water logged foam
if it's been water logged for a long time then chances are it's gona need a new floor anyway!
mine was the same before i got it, and now it's had a new floor glassed in.
my bilges are clear and i've got a nice pump down there cos they do like to take on water in the chop! (cue comment from jizm )
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Old 15 August 2010, 11:28   #14
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one thing i forgot to mention, but is probably the cause of this wet foam, is that one of the two bilge screws wont tighten, it goes so far, then just turns around, someone stripped the thread at some point

would it be better to glue that one in place? it is probably where the pint of water gets in when i am out in her.

also, behind the transom, the main wires and cables to the engine used to come through the deck, under it, then back up to the steering etc
this i blanked off, and rerouted much higher, as i thought it was an obvious area to leak water under the decks. now the cables go out higher than the transom, so should never leach water in
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Old 15 August 2010, 13:28   #15
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my bilges are clear and i've got a nice pump down there cos they do like to take on water in the chop! (cue comment from jizm )
There doesn't need to be any chop....
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Old 15 August 2010, 13:28   #16
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the best thing you can do is cut your floor out
.....and use it as a skip?
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Old 16 August 2010, 07:41   #17
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The foam in those boats is what is preventing the SE of England from dissappearing under rising seal levels!

I got an 11' one. We spent 6 months at a silly angle in a shed with multiple holes along the transom, and I've no idea how much water got out, but suffice to say we could lift it as opposed to the 4 people it needed to drag it up the beach on it's trolley before.

Every screw etc was taken out & re- sealed, all fibreglass imperfections removed. One half hour trip later & we were back to square one.

Having done that twice, we're now looking for an Avon W350 / 400 or equivalent to replace it.

PS anyone want an 11' dory, 2 careful owners?
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Old 16 August 2010, 08:54   #18
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take the black fendering off from around the boat, thats where the top is fixed to the bottom, take the top deck off, dig out the foam glass a layer of ply on the underside of the deck and put the deck back on the hull.
it's not easy but thats the way
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Old 16 August 2010, 12:34   #19
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.....and use it as a skip?
so were getting fish guts and rag worm all over your new ride then?
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Old 17 August 2010, 12:06   #20
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so were getting fish guts and rag worm all over your new ride then?
In order to have fish guts first we need to actually catch fish...
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